1/4-20 x 1/2 Flat Head Machine Screw

Make your life easier with our Flat Head and Round Head Machine Screws - they have the Square Drive advantage! And they are zinc plated for light corrosion resistance. Flat head machine screws have a standard 82 degree countersink design similar to that used on our Square Drive Production wood screws. Made in USA or Canada. Screws may be Square or Combo Drive.